7.c++ program to swap two numbers using 6 methods

SWAPPING NUMBERS USING 6 METHODS:

FIRST METHOD:

// C++ program to swap numbers using temporary variable

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int x,y,z;

    cout<<"Enter The Value of x : ";

    cin>>x;

    cout<<"Enter The Value of y : ";

    cin>>y;

    cout<<"\n\t Before Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    z=x;

    x=y;

    y=z;

    cout<<"\n\t After Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    return 0;

}

SECOND METHOD:

// C++ program to swap numbers without using Temporary variables using addition and subtraction operator

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int x,y;

    cout<<"Enter The Value of x : ";

    cin>>x;

    cout<<"Enter The Value of y : ";

    cin>>y;

    cout<<"\n\t Before Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    x = x + y;

    y = x - y;

    x = x - y;

    cout<<"\n\t After Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    return 0;

}

THIRD METHOD:

// C++ program to swap numbers without using temporary variable using multiplication and division operator

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int x,y;

    cout<<"Enter The Value of x : ";

    cin>>x;

    cout<<"Enter The Value of y : ";

    cin>>y;

    cout<<"\n\t Before Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    x = x * y;

    y = x / y;

    x = x / y;

    cout<<"\n\t After Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    return 0;

}

FOURTH METHOD:

// C++ program to swap numbers using bitwise addition and subtraction

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int x,y;

    cout<<"Enter The Value of x : ";

    cin>>x;

    cout<<"Enter The Value of y : ";

    cin>>y;

    cout<<"\n\t Before Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    x = (x & y) + (x | y);

    y = x + (~y) + 1;

    x = x + (~y) + 1;

    cout<<"\n\t After Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    return 0;

}

FIFTH METHOD:

// C++ program to swap numbers using swap( ) function

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int x,y;

    cout<<"Enter The Value of x : ";

    cin>>x;

    cout<<"Enter The Value of y : ";

    cin>>y;

    cout<<"\n\t Before Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    swap(x,y);

    cout<<"\n\t After Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    return 0;

}

SIXTH METHOD:

// C++ program to swap numbers using bitwise XOR

INPUT:

#include<iostream>

using namespace std;

int main()

{

    int x,y;

    cout<<"Enter The Value of x : ";

    cin>>x;

    cout<<"Enter The Value of y : ";

    cin>>y;

    cout<<"\n\t Before Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    x = x ^ y;

    y = x ^ y;

    x = x ^ y;

    cout<<"\n\t After Swapping"<<endl;

    cout<<"x = "<<x<<endl;

    cout<<"y = "<<y<<endl;

    return 0;

}

For all this program same output :